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 _    _     ______   _    _    __   __   _____    
| \  / ||  /_   _// | \  / ||  \ \\/ // |  __ \\  
|  \/  ||   -| ||-  |  \/  ||   \ ` //  | |  \ || 
| .  . ||   _| ||_  | .  . ||    | ||   | |__/ || 
|_|\/|_||  /_____// |_|\/|_||    |_||   |_____//  
`-`  `-`   `-----`  `-`  `-`     `-`'    -----`

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Text this: Algebraic connections between topological indices